Nampa Municipal Airport
Aircraft Accident/Incident Report

Nampa, Idaho 83687
Friday, April 6, 2012 16:52 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that, after soaring for nearly 3 hours, he returned to the departure airport and made a traffic pattern approach for landing. On final approach, he lowered the wing flaps to 40 degrees. The pilot additionally reported that, because it appeared the glider was going to be too high, he further extended the wing flaps. Suddenly, the glider’s sink rate increased, and the glider touched down hard short of the runway. The glider bounced and yawed sideways, the landing gear collapsed, and the fuselage buckled as the glider slid to a stop. The pilot stated that he subsequently observed that the flaps were set to 90 degrees, which was 30 degrees beyond what he had intended.

NTSB Probable Cause Narrative

The pilot’s incorrect positioning of the wing flaps during the landing approach, which resulted in a loss of lift and hard landing.

Event Information

Type of Event Accident
Event Date 4/6/2012
Event Day of the Week Friday
Time of Event 1652
Event Time Zone Mountain Daylight Time
Event City Nampa
Event State IDAHO
Event Country --
Zipcode of the event site 83687
Event Date Year 2012
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 433453N
Event Location Longitude 1163123W
Event Location Airport Nampa Municipal
Event Location Nearest Airport ID MAN
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 2537
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 17
Altimeter Setting at event time (in. Hg) 29.92
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29812
NTSB Notification Source NM ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 16 2012 7:07PM
User who most recently changed record snyg
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N990
NTSB Number WPR12CA157
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name FISHER
Aircraft Model HP-14 SAILPLANE
Aircraft Series Identifier --
Aircraft Serial Number 152
Certified Max Gross Weight 810
Aircraft Category Glider
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Mar 27 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 343
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name PAUL HAROLD WAYNE
Aircraft Owner Street Address --
Aircraft Owner City NAMPA
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83686-6272
Operator is an individual? Yes
Operator Name PAUL HAROLD WAYNE
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City NAMPA
Operator State ID
Operator Country USA
Operator Zip code 83686-6272
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code MAN
Departure City Nampa
Departure State ID
Departure Country USA
Departure Time 1356
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code MAN
Destination City Nampa
Destination State ID
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 27 2012 4:29PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 29
Runway Length 5000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --